Portable fire-extinguisher



(No Model.) 2 Sheets-Sheet 1.

H. D. GREENE. PORTABLE FIRE EXTINGUISHER.

No. 474,042. Patented MayB, 1892.

Witnesses:

(No Model.) 2 Sheets- Sheet 2.

' H. D. GREENE.

PORTABLE FIRE EXTINGUISHER.

No. 474,042. Patented May 3, 18-92.

UNITED STATES PATENT OFFICE.

HENRY D. GREENE, OF PHILADELPHIA, PENNSYLVANIA.

PORTABLE FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 474,042, dated May 3,1892. Application filed December 30, 1890. Renewed March 9. 1892. SerialNo. 424,838. (No model.)

To all whom it may concern:

Be it known that I, HENRY D. GREENE, a citizen of the United States,residing atPhiladelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inPortable Fire-Extinguishers; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to fire-extinguishers, and more especially to thatclass of extinguishers in which the fluid is contained within a suitablereservoir and is expelled therefrom when needed by compressed airconfined within the reservoir.

The object of my invention is to provide a portable apparatus of thekind above referred to that shall be simple in construction andoperation, inexpensive in its manufacture, and very neat and compact.

To these ends my invention consists in a new and novel combination andarrangement of the several parts constituting my improved apparatus, allof which will fully and clearly appear from the following descriptionand claim, taken in connection with the accompanying drawings, in whichFigure 1 illustrates in side elevation my improved fire-extinguisher;Fig. 2, avertical central section of the same; Fig. 3, a section,enlarged, of the pump for introducing compressed air; Fig. 4, a sectionof the dischargenozzle, and Fig. 5 a view of the gage detached.

A is the reservoir for containing the fluid under pressure, and which ispreferably cylindrical in shape, my preferred method of manufacturebeing to form the cylinder from seamless drawn copper tubing.

1) is a cap secured in any suitable manner to the upper end of thecylinder and forming the top or head thereof. In the bottom 0 is anopening 0', through which the fluid is admitted to the reservoir. Ascrew cap or plug 0 normally closes the same.

cl is the discharge-nozzle, secured to the cylinder near its lower endby means of the nut d. A valve-seat e is formed in the piece f, and thispiece is also provided with the internal screw-threads f for theexternal screwthreads on the valve-rod g. This rod is bored centrallyfor nearly its entire length, the passage being closed at its inner endby the valve 71.. Small holes or openings g form a communication betweenthe chamber in the piece f and the passage through the valve-rod andpermit the fluid when the valve is open to pass from the reservoirthrough the valve-rod and from the nozzle.

2' is the ordinary confining-nut. The outer end of the valve-rod isscrew-threaded, as shown, to permit of the attachment of the handle j,and also of a test-gage, as at 70, and of the pump Z for admittingcompressed air.

The construction and operation of this pump I will now describe.

m is the pump-rod, which is formed hollow, as is also the handle m, andthrough which the air to be compressed is admitted. Above the handle isa socket, in which is temporarily secured the test-gage. On the lowerend of the pump-rod is a casing to, which is formed of the section 0,having the cap 0 thereon. In this cap is a series of openings 0 throughwhich the air is adapted to pass when the valve 19 is lowered. Thisvalve is provided with the vents p and p to give passage to the air.Immediately below this Valve is a second valve g, which is constructedsimilar to the valve 10 and which moves in the casing r and its cap 1".Near the top of the cylinder is suitably secured an eye 3, and in linetherewith, but near the base of the cylinder is also suitably secured anL-shaped support 25, which is provided with the screw-threaded tip 25',which is adapted to enter the threaded socket r in the lower portion ofthe casing a". This eye .9 and support t serve as a temporary holder forthe air-pump and permit the use of the air-pump as a handle formanipulating the apparatus.

In practicing my invention the fluid is first admitted through theopeningin the bottom of the reservoir and the opening then closed bymeans of the cap, as already stated. The pump is nowapplied to thedischarge-nozzleby means of the socket 1, which is screwed onto thescrew-threaded tip of the nozzle. The valve of the nozzle is then openedand the pump is operated until the approximate requisite press- I ure isattained. Then the valve is closed, the pump is disconnected, and thepressure-gage applied, which is done in a manner similar to thatemployed in attaching the pump. The valve is now opened, which permitsthe pressure of the contents to be indicated on the gage. The valve isthen closed and the gage removed and screwedto the upper portion of thepump, which is placed in its supports on the side of the cylinder, asalready described. The apparatus is now in condition for use. Thus itWill be seen that by my invention I am enabled to manufacture at smallexpense a neat, simple, but effective lire-extinguisher and one thatWill be easily handled and operated. By my invention I am also enabledto employ the discharge-nozzle not only as an outlet for the fluid, butalso as a means of connection for the pump and gage.

I claim In a portable fire-extinguisher, the combination, with areservoir having a fluid-inlet, of a discharge-nozzle having a valve andthe screw-threaded tip for the purposes set forth, an air pump, a gagetemporarily secured thereto, and supports on the side of the cylinderfor temporarily securing the pump and gaze thereto, as described.

In testimony whereof I affix my signature ill presence of two Witnesses.

HENRY D. GREENE. lVitnesses:

WILL T. NORTON, ARTHUR BRENNING.

